Talking-machine needle.



110.881,594. PATENTED MAE.' 1o, 190s.

E. KNIGSTEIN.

` TALKING MAGEINE NEEDLE.

APPLIUATION FILED SEPT. 20, 1907.k

197'7'0 /VEY Aso UNITED sTATEs GBOR KNIGSIEIN, Ol` SAN FRANCISCO,CALIFORNIA.

TA LKING-MA CHINE NEE DLE No. 881,594. Specication of Letters Patent.Patented March 10, 1908.

Application filed September 20, 1907. Serial No. 393,851.

To all whom it may concern:

Beit known that I, Gon KNies'rElN', citizen of United States,'residingin the city and county of San Francisco and State of California, haveinvented inw and useful Improvements in 'lalki11g-Machine Needles, ofwhich the following is a specification.

My invention'relatcs to talking machines, and especially to the needlesthrough which the records upon the disks are transmitted through theremainder of the apparatus.

It consists in a novel form of the needle, so that by changing itsposition, a loud or soft tone may be transmitted.

Referring to the accompanying drawings for a more completeexplanation ofmy invention-Figures 1 and. 2 show different positions of the needlewith relation to the disk.

In the transmission of audible sounds from disk talking machines, asteel needle is' ixed to the diaphragm or sounder of the transmite .terand the point of this needle rests u pon the,

disk and follows the characteristic lines irom which the audible soundsare transmitted. Needles for this purpose have heretofore been iliadesubstantially straight, and so held-with relation to the record diskthat they were lnoved smoothly over it; but they are incapable ofproducing any changes in the tones to be transmitted.

In my invention the needle has a shank A which is adapted to be fixed inany suitable holder connected with the diaphragm and the transmitter,and the point 2 travels upon the record disk. Intermediate between theends of the needle the shank is bent into a curve, as shown at 3. Thiscurve may be made lon er or shorter, and more or less abrupt in itsends, as shown in the drawings. When a needle oi" this construction isfixed in the holder so that the bend )rejects transversely of the lineof travel of the disk with relation to the needle., the tones producedthereby will be ver)l muchsoftened on account of the greater length andthe elasticity of the needle; and the same ell'ect will be producedwhether the bend projects in one direction or tl ie other, transverselyof the travel.

If the needle is fixed in its clamp or holder so that the curve is inthe line of travel of the disk, and with the bend presented in eitherdirection, the tones will be made louder and stronger, and thus enabledto regulate the tones of the instrument'to `a degree, and produce such atone as the character of the voice or music requires.

llaving thus described my invention, what I claim and desire to secureby Letters Patent is" 1. A needle for a disk talking machine, saidneedle having a portion intermediate of its ends bent transverselybeyond the plano of the outer sides of the needle to increase the.length and elasticity thereof'. n

2. A needle for disk talking machines, having one end adapted to befixed and connected with the transmitter, the other end pointed tofollow the lines of the disk, and an interlmediate bend which curvesoutwardly from the direct line of the first two portions of the needle.

In testimony whereof Ihave hereunto set my hand in presence of twosubscribing witnesses. d

GABOR KONIGSTEIN. Witnesses:

C. A. PENFIELD,

S. H. NoURsE.

